Email verification

Use ZeroBounce to check a Form Router's submitted email before routing. Connect the provider once in workspace settings, then enable validation on each router that needs it.

Connect ZeroBounce

1

Open the integration

Go to Settings → Integrations → Email verification and choose Connect on ZeroBounce.

2

Choose the processing region

Enter your API key and select the Processing region. The initial region is European Union; United States is also available.

3

Verify the connection

Choose Connect ZeroBounce. A valid key can still produce a warning if the provider account has no validation credits.

When updating an existing connection, leave Replacement API key blank to keep the saved key and choose Verify and save.

Add validation to a Form Router

1

Add the validation card

Open your router and use the + on the connector between Form Submission and Lead Routing. Choose Email validation. The ZeroBounce card appears and its settings open.

If the card is already present, click it to edit. You can also find the setting in Form Submission.

2

Enable and save

Turn on Disqualify submissions with invalid email addresses and choose Save. The switch is unavailable until ZeroBounce is connected. Canceling an unsaved insertion removes the new card.

3

Test and publish

Use Test route to check the saved configuration, then choose Publish. The simulation uses synthetic inputs; it does not call ZeroBounce. Verify the live integration separately with controlled test submissions.

The disabled switch links to Settings → Integrations when a ZeroBounce connection is required.

Understand the outcome

Validation result	Routing behavior
Email is returned as valid	Continue to routing rules.
Email is missing, or a successful validation returns a result other than valid	Disqualify the submission. Email-validation rejections skip the router's after-routing CRM actions.
Provider error or unavailable connection	Continue routing; this check does not reject the submission when validation is unavailable.

Validation does not guarantee a booking. A valid email must still pass your routing rules and find an eligible host and time.

Normalize email aliases is a separate setting: it removes text after + so addresses such as [e-mail] match [e-mail]. It does not verify deliverability.

Reconnect or disable validation

Disconnecting ZeroBounce preserves router settings and rule conditions. Reconnect it in Settings → Integrations when a warning appears. Review actual routing results rather than assuming an unavailable provider rejected the prospect.

To disable validation for a router, turn the setting off, save, and publish. Saving it off removes the validation card from the draft canvas. See Router versions for how changes reach new submissions.